![LG LAN-8680MH Скачать руководство пользователя страница 83](http://html.mh-extra.com/html/lg/lan-8680mh/lan-8680mh_service-manual_207303083.webp)
- 9-15 -
START.
TV MODE CHANGE.
PN415 PIN 15
VOLTAGE CHECK
Q416 BASE(PIN 2)
VOLTAGE CHECK
Q418 BASE(PIN 2)
VOLTAGE CHECK
PN415 (NO. 5)
VIDEO OUTPUT CHECK
PN415
AUDIO OUTPUT CHECK
IC421
OUTPUT CHECK
IC401 FAILURE CHECK
• PN413(PIN 11) FAILURE CHECK
• L455 FAILURE CHECK
• Q415,Q416 FAILURE CHECK
• L460 FAILURE CHECK
• Q417,Q418 FAILURE CHECK
• IC470 L458 FAILURE CHECK
IC423 FAILURE CHECK
IC421 & PERIPHERAL PARTS
FAILURE CHECK
IC477 & PERIPHERAL PARTS
FAILURE CHECK
IC433 PN404 CONN. & CABLE
CONNECTION CHECK
TV MODULE FAILURE CHECK
TV
DISPLAY
DEAD
SOUND
DEAD
TV
DISPLAY
WHITE
NOISE
TV
DISPLAY
DEAD
TV
SOUND
DEAD
TV MODULE FAILURE CHECK
LCD & GRAPHIC CONT.
FAILURE CHECK
IC401 FAILURE CHECK
LOW
LOW
LOW
NO
NO
NO
NO
NO
NO
NO
HIGH (3V)
HIGH (3V)
HIGH (3V)
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
IC477
I/O CHECK
PN415 PIN 15
VOLTAGE CHECK : B+?
PN415 PIN 16
VOLTAGE CHECK : B+?
PN415 PIN 13
VOLTAGE CHECK : 5V?
TV VIDEO OUTPUT
CHECK
TV AUDIO OUTPUT
CHECK
END
❏
TV PART
• TV TROUBLESHOOTING FLOW CHART : TV DISPLAY, SOUND DEAD
Содержание LAN-8680MH
Страница 3: ... CONTENTS SPECIFICATION 1 1 SECTION 1 SPECIFICATION ...
Страница 5: ... 1 2 ...
Страница 8: ... 2 2 REAR CONNECTION DIAGRAM Radio ANT GPS ANT 24 PIN CONNECTOR A B 32 PIN CONNECTOR TV ANT ...
Страница 10: ... 2 4 ...
Страница 11: ... CONTENTS WIRING DIAGRAM 3 1 BLOCK DIAGRAMS 3 2 SECTION 3 TOTAL WIRING BLOCK DIAGRAMS ...
Страница 12: ... 3 1 WIRING DIAGRAM LAN8680MH ...
Страница 13: ... 3 2 BLOCK DIAGRAM H W ...
Страница 14: ... 3 3 BLOCK DIAGRAM S W Destination ...
Страница 15: ... 3 4 ...
Страница 19: ... 4 4 ...
Страница 21: ... 5 1 FRONT SCHEMATIC DIAGRAM ...
Страница 22: ... 5 2 TRIM SCHEMATIC DIAGRAM ...
Страница 23: ... 5 3 FRONT TRIM PRINTED CIRCUIT BOARDS LOWER SIDE UPPER SIDE ...
Страница 24: ... 5 4 ...
Страница 26: ... 6 1 MAIN BLOCK DIAGRAM ...
Страница 27: ... 6 2 MAIN POWER BLOCK DIAGRAM ...
Страница 28: ... 6 3 MAIN SCHEMATIC DIAGRAM CPU 3 4 6 7 2 1 5 ...
Страница 29: ... 6 4 MAIN SCHEMATIC DIAGRAM FLASH SDRAM 8 ...
Страница 30: ... 6 5 MAIN SCHEMATIC DIAGRAM GRAPHIC IC 9 10 11 12 13 ...
Страница 31: ... 6 6 MAIN SCHEMATIC DIAGRAM KEY BUFFER UARTC AUDIO BUFFER 15 14 ...
Страница 32: ... 6 7 MAIN SCHEMATIC DIAGRAM GPS CFC TOUCH CONTROLLER 16 17 ...
Страница 33: ... 6 8 MAIN SCHEMATIC DIAGRAM PLD DVD TV BUZZER FAN 18 ...
Страница 34: ... 6 9 MAIN SCHEMATIC DIAGRAM 32PIN CON INTERFACE 19 ...
Страница 35: ... 6 10 MAIN WAVEFORMS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ...
Страница 43: ... 6 18 MAIN PRINTED CIRCUIT BOARD UPPER SIDE ...
Страница 44: ... 6 19 MAIN PRINTED CIRCUIT BOARD LOWER SIDE ...
Страница 45: ... 6 20 ...
Страница 47: ... 7 1 AUDIO BLOCK DIAGRAM ...
Страница 48: ... 7 2 AUDIO POWER BLOCK DIAGRAM ...
Страница 49: ... 7 3 AUDIO SCHEMATIC DIAGRAM MICOM 5 7 8 6 4 3 1 2 ...
Страница 50: ... 7 4 AUDIO SCHEMATIC DIAGRAM EQ 9 10 ...
Страница 51: ... 7 5 AUDIO SCHEMATIC DIAGRAM PLL SLIDING 14 15 11 12 13 ...
Страница 52: ... 7 6 AUDIO SCHEMATIC DIAGRAM AUDIO POWER MAIN ...
Страница 53: ... 7 7 AUDIO SCHEMATIC DIAGRAM AUDIO POWER SUB I ...
Страница 54: ... 7 8 AUDIO SCHEMATIC DIAGRAM AUDIO POWER SUB 2 ...
Страница 55: ... 7 9 AUDIO WAVEFORMS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ...
Страница 58: ... 7 12 AUDIO PRINTED CIRCUIT BOARD UPPER SIDE ...
Страница 59: ... 7 13 AUDIO PRINTED CIRCUIT BOARD LOWER SIDE ...
Страница 60: ... 7 14 ...
Страница 62: ... 8 1 POWER SCHEMATIC DIAGRAM POWER LINE ...
Страница 63: ... 8 2 POWER SCHEMATIC DIAGRAM ECHO CANCELLER ...
Страница 65: ... 8 4 POWER PRINTED CIRCUIT BOARD UPPER SIDE ...
Страница 66: ... 8 5 POWER PRINTED CIRCUIT BOARD LOWER SIDE ...
Страница 67: ... 8 6 ...
Страница 88: ... 9 20 ...